Si Vis Pacem Posted October 11, 2016 Share Posted October 11, 2016 Had this strange behavior of Sierra freezing and resetting if I connect any Arduino Uno Clone with an CH340/341 USB FTDI built in. The older driver I used - assigns a really long winded name with spaces to the USB port the Arduino IDE just cuts off and thus can't find again for flashing - is the root of the problem. Just to clarify: Not the naming part - that's only a problem in the IDE. Björn's Techblog - Signed Mac OS Driver for Winchiphead CH340 serial bridge Link to comment https://www.insanelymac.com/forum/topic/316699-hint-for-connecting-usb-device-causes-freeze-and-reset-on-sierra/ Share on other sites More sharing options...
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